BEAM REFLECTION MECHANISM, REFLECTOR DRIVE MECHANISM AND REFLECTOR ANTENNA DEVICE

• Main Authors: OKUNO MASASHI, MIZUNO TOMOHIRO
• Format: Patent
• Language: English; Japanese
• Published: 01.03.2021
• Subjects: ANTENNAS, i.e. RADIO AERIALS; BASIC ELECTRIC ELEMENTS; ELECTRICITY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE; WAVEGUIDES

To provide a beam reflection mechanism, a reflector drive mechanism and a reflector antenna device, having a simple relationship between a first mirror facing a reflector part and a second mirror facing the first mirror, and a rotational axis of rotating the first mirror.SOLUTION: In a reflector drive mechanism, a tubular part 10 includes: a first housing part 11 which has, in a side face, a first passage port where a reception beam focused by a reflector part or a transmission beam reflected by a first mirror 1 toward the reflector part passes, which faces the first passage port and includes the first mirror 1 disposed at the inside thereof, and which rotates together with the first mirror 1, with an optical axis between the first mirror 1 and a second mirror 2 as a rotational axis; a second housing part 12 which includes the second mirror 2 disposed at the inside thereof and which has, in a side face, a second passage port where the reception beam reflected by the second mirror 2 or the transmission beam toward the second mirror 2 passes; and a first rotation support part 21 which connects between the first housing part 11 and the second housing part 12 and which rotatably supports the first housing part 11.SELECTED DRAWING: Figure 10 【課題】反射鏡部と対向する第1ミラー及び第１ミラーと対向する第２ミラーと、第１ミラーを回転させる回転軸との関係が簡便なビーム反射機構、反射鏡駆動機構及び反射鏡アンテナ装置を提供する。【解決手段】反射鏡駆動機構において、管状部１０は、側面に反射鏡部が集束した受信ビーム又は第１ミラー１が反射して反射鏡部へ向かう送信ビームが通過する第１通過口を有し、第１通過口と対向して第１ミラー１が内部に配置され、第１ミラー１及び第２ミラー２の間の光軸を回転軸として、第１ミラー１とともに回転する第１ハウジング部１１と、第２ミラー２が内部に配置され、側面に第２ミラー２が反射した受信ビーム又は第２ミラー２に向かう送信ビームが通過する第２通過口を有する第２ハウジング部１２と、第１ハウジング部１１と第２ハウジング部１２とをつなぎ、第１ハウジング部１１を回転可能に支持する第１回転支持部２１とを有する。【選択図】図１０